DNA for Genealogy
What is DNA? Autosomal DNA Mitochondrial DNA Y-DNA DNA Test Process Y DNA Results DNA Mutations Y-DNA Markers More Y-DNA Markers Y-DNA TMRCA Y-Chromosome SNPs Y-DNA Haplogroups mtDNA interpretation mtDNA Haplogroups DNA Testing Companies DNA Links
Y-Chromosome SNPs
SNPs are rare mutations at a single nucleotide.
Males with the same SNP belong to the same Haplogroup, and usually share similar origins.
Haplogroups can be predicted from STR values and typically appear on DNA test reports.
Some Haplogroups defined by SNPs